But having just finished my third novel and fourth book in five years I now know that I could have written ten books in that time frame had I the desire. (copyblogger.com)
Now, in A Feast for Crows, Martin delivers the long - awaited fourth book of his landmark series, as a kingdom torn asunder finds itself at last on the brink of peace... only to be launched on an even more terrifying course of destruction. (bookbrowse.com)
The good news is that if you put in the effort from the very beginning, by the time your second, third, or fourth book comes out, you should have a solid base of readers to work from, a base developed from marketing activities associated with previous launches. (authorsguild.org)